A gas-liquid separation device for natural gas at wellhead

Abstract

The embodiment of the present application provides a wellhead natural gas gas-liquid separation device, which relates to the field of natural gas separation technology. A wellhead natural gas gas-liquid separation device comprises: a mounting mechanism, a separation mechanism, the separation mechanism is located in the middle of the upper end of the mounting mechanism, a liquid production regulating mechanism, the liquid production regulating mechanism is located at the upper end of the separation mechanism, a filtering mechanism, the filtering mechanism is located inside the upper end of the mounting mechanism, the filtering mechanism is located at the upper ends of the separation mechanism and the liquid production regulating mechanism, and a driving mechanism, the driving mechanism is located on one side of the upper end of the mounting mechanism, and the driving mechanism drives the separation mechanism to rotate. The positions of the flow control plate, the liquid production plate and the filter screen can be adjusted synchronously, so that the flow process and separation process of the gas-liquid mixture in the separation device are correspondingly optimized, thereby improving the separation quality of mixtures with different gas-liquid ratios.

Description

Technical Field

[0001] The present application relates to the technical field of natural gas separation, and in particular to a wellhead natural gas gas-liquid separation device. Background Art

[0002] During the natural gas extraction process, the natural gas extracted from the wellhead is usually in a gas-liquid mixture state. In different extraction areas, the ratio of gas to liquid inside is mostly different. For example, sandstone reservoirs usually have a higher porosity and may contain more formation water, resulting in a relatively high liquid ratio in the extracted natural gas, while carbonate reservoirs may be relatively dense and have a relatively low liquid content.

[0003] However, the separation mechanism, filtering mechanism and liquid collection mechanism of the existing natural gas gas-liquid separation device are mostly fixed and welded, and may not be able to be synchronously adjusted according to the change of the gas-liquid ratio, resulting in low separation efficiency when the liquid content is high or the gas content is high. At the same time, the existing natural gas gas-liquid separation device may require multiple driving mechanisms to respectively control the positions of the flow control plate, the liquid collection plate and the filter screen, which not only increases the cost and volume of the equipment, but also makes the circuit design complicated and prone to failure. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a wellhead natural gas gas-liquid separation device, which starts the servo motor clockwise or counterclockwise to meet the separation work of different gas-liquid ratios, synchronously adjusts the positions of the flow control plate, the liquid sampling plate and the filter screen, optimizes the flow and separation process of the gas-liquid mixture, improves the separation quality, reduces the use of the optimized circuit of the driving mechanism, and can also adjust the position of the flow control plate according to the gas-liquid ratio, reduce liquid accumulation, and improve separation efficiency and quality.

[0005] A wellhead natural gas gas-liquid separation device according to an embodiment of the present application includes:

[0006] The mounting mechanism comprises a base and a filter barrel, the front end and the rear end of the upper surface of the base are fixedly connected to a fixing seat, the middle part of the upper surface of the base is fixedly connected to a support seat, and the filter barrel is fixedly connected to the upper end of the support seat;

[0007] A separation mechanism, wherein the separation mechanism is located in the middle of the upper end of the mounting mechanism, the separation mechanism comprises a separation cylinder, a flow control plate and a liquid-passing plate, the two separation cylinders are both located at the upper end of the base, the outer walls of the front end and the rear end of the separation cylinder are both fixedly connected to the inner wall of the fixed seat, the middle part of the front end of the upper surface of the base is fixedly connected to an assembly seat, the middle part of the separation cylinder is rotatably connected to a transmission rod, the front end of the transmission rod is rotatably connected to the assembly seat, a plurality of flow control plates are fixedly connected to the outer wall of the transmission rod, a plurality of liquid-passing plates are fixedly connected to the inner wall of the separation cylinder, a plurality of flow control plates are tightly fitted to a plurality of liquid-passing plates, the outer wall of the rear end of the transmission rod is fixedly connected to a first transmission wheel, the outer wall of the first transmission wheel is sleeved with a first transmission toothed belt, the lower end of the filter barrel is connected with a plurality of intermediate pipes, the upper part of the front end of the filter barrel is connected with a two-way connecting pipe, the lower end of the intermediate pipe is connected with the middle part of the separation cylinder, and the lower ends of the two-way connecting pipes are respectively connected with the upper end of the middle part of the separation cylinder;

[0008] A liquid collection regulating mechanism, the liquid collection regulating mechanism is located at the upper end of the separation mechanism, the liquid collection regulating mechanism comprises a regulating box and a regulating frame, the two regulating boxes are respectively fixedly connected to the middle part of the upper end of the separation barrel, the regulating box is respectively fixedly connected with three groups of positioning round rods on one side away from the base and the filter barrel, the outer walls of the positioning round rods are slidably connected with connecting plates, the inner bottom surface of the regulating box is provided with a plurality of regulating holes, a plurality of regulating frames are fixedly connected with the inner bottom surface of the regulating box, the lower ends of the regulating holes are fixedly connected with sealing arc plates, the inner walls on both sides of the regulating frame are provided with a plurality of limiting grooves, the insides of the limiting grooves are slidably connected with liquid collection plates, and the lower ends of the liquid collection plates penetrate the sealing arc plates and extend to the inside of the separation barrel;

[0009] A filter mechanism, wherein the filter mechanism is located inside the upper end of the mounting mechanism, the filter mechanism is located at the upper ends of the separation mechanism and the liquid collection regulating mechanism, the filter mechanism comprises a connecting frame, a connecting slide rod and a filter frame, the two connecting frames are respectively located at the upper ends of the base and the transmission rod, the two connecting frames are respectively fixedly connected to the middle part of the upper surface of the connecting plate, the upper ends of the two connecting slide rods are fixedly connected to the upper ends of the connecting frames, the connecting slide rods are both slidably connected inside the filter barrel, the filter frame is fixedly connected to the lower end of the connecting slide rod, the inner wall of the filter frame is fixedly connected with a filter net, and the filter frame is slidably connected inside the filter barrel;

[0010] The driving mechanism is located on one side of the upper end of the mounting mechanism, and the driving mechanism drives the separation mechanism to rotate, controls the flow of gas and liquid during the gas-liquid separation process of the separation mechanism, and drives the contact area between the liquid sampling adjustment mechanism and the gas and liquid, and drives the upper and lower position adjustment of the filtering mechanism.

[0011] According to some embodiments of the present application, an air inlet pipe is fixedly connected to the middle of the upper end of the filter barrel, and a first liquid discharge valve pipe is through-connected to the lower portion of the rear end of the filter barrel, and the rear end of the first liquid discharge valve pipe extends to the outside of the support seat.

[0012] According to some embodiments of the present application, a control valve is provided at the front end of the upper portion of the two-way connecting pipe.

[0013] According to some embodiments of the present application, a baffle is fixedly connected to the middle of the inner wall of the separation cylinder, an exhaust valve pipe is connected through the upper parts of the front and rear ends of the separation cylinder, and a second liquid discharge valve pipe is connected through the lower parts of the front and rear ends of the separation cylinder.

[0014] According to some embodiments of the present application, the front end and the rear end of the inner bottom surface of the filter barrel are fixedly connected with guide thin rods, and the filter frames are slidably connected to the outer walls of the guide thin rods.

[0015] The gear train is a gear train that is coupled to the first gear and the gear train is coupled to the first gear, and the gear train is coupled to the first gear train, wherein the gear train is coupled to the gear train on the one hand and the gear train is coupled to the gear train on the other hand.

[0016] Two assembly holes are respectively provided on both sides of the upper surface of the base, the interiors of the assembly holes are fixedly connected to the limiting frames, the tooth plates are slidably connected to the inner walls of the limiting frames, the ends of the tooth plates close to the middle of the base are fixedly connected to the transmission frames, and the upper ends of the transmission frames are fixedly connected to the upper surface of the connecting plate.

[0017] According to some embodiments of the present application, a plurality of thick guide rods are fixedly connected to both sides of the front end and the rear end of the upper surface of the base, and the transmission frames are slidably connected to the outer walls of the thick guide rods.

[0018] The beneficial effects of the present application are as follows: when in use, the staff first obtains the content of gas and liquid in the gas-liquid, and then controls the rotation position of the separation mechanism by starting the driving mechanism. If the liquid content in the gas-liquid mixture is high, the separation mechanism will rotate counterclockwise and drive the liquid sampling regulating mechanism to move toward the inside of the separation mechanism, thereby increasing the contact area between the liquid sampling regulating mechanism and the gas-liquid mixture and improving the separation accuracy. At the same time, the liquid sampling regulating mechanism will drive the filtering mechanism to move downward inside the filtering barrel during the downward movement, thereby increasing the distance between the gas-liquid mixture and the filtering mechanism, making the gas-liquid separation more complete and improving the separation efficiency. Among them, by starting the servo motor clockwise or counterclockwise, on the one hand, it can meet the gas-liquid separation work with high liquid content and high gas content, and can be based on different First, targeted adjustments can be made to different gas-liquid ratios to make the separation process more efficient; second, the positions of the flow control plate, the liquid sampling plate and the filter screen can be adjusted synchronously, so that the flow process and the separation process of the gas-liquid mixture in the separation device can be correspondingly optimized, thereby improving the separation quality of mixtures with different gas-liquid ratios; third, the positions of the flow control plate, the liquid sampling plate and the filter screen can be changed accordingly through a single servo motor, which can reduce the use of the driving mechanism and optimize the circuit; fourth, the position of the flow control plate can be adjusted according to the mixtures with different gas-liquid ratios, which can reduce the problem of liquid accumulation in the separation device. At the same time, reducing the vent hole can reduce the gas flow rate, thereby reducing its drag on the liquid, making it easier for the liquid to separate and settle under the action of gravity, etc., thereby improving the efficiency and quality of gas-liquid separation.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a right-side perspective structural diagram of a wellhead natural gas gas-liquid separation device according to an embodiment of the present application;

[0022] Figure 2 It is a left-side stereoscopic structural schematic diagram of a wellhead natural gas gas-liquid separation device according to an embodiment of the present application;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of a separation mechanism, a liquid collection adjustment mechanism, a filtering mechanism and a driving mechanism according to an embodiment of the present application;

[0024] Figure 4 is a schematic diagram of the three-dimensional structure of the installation mechanism according to an embodiment of the present application;

[0025] Figure 5 is a schematic diagram of the three-dimensional structure of a separation mechanism according to an embodiment of the present application;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of a baffle, an assembly seat, a transmission rod and a flow control plate according to an embodiment of the present application;

[0027] Figure 7 is a schematic diagram of the three-dimensional structure of a separation cylinder according to an embodiment of the present application;

[0028] Figure 8 is a schematic diagram of a half-sectioned three-dimensional structure of a separation cylinder according to an embodiment of the present application;

[0029] Fig. 9 is a front view three-dimensional structural schematic diagram of a liquid sampling adjustment mechanism according to an embodiment of the present application;

[0030] Fig.10 is a bottom-up stereoscopic structural schematic diagram of a liquid sampling adjustment mechanism according to an embodiment of the present application;

[0031] Fig.11 is a half-section three-dimensional structural schematic diagram of a liquid sampling adjustment mechanism according to an embodiment of the present application;

[0032] Fig.12 is a schematic diagram of a three-dimensional structure of a filtering mechanism according to an embodiment of the present application;

[0033] Fig.13 is a schematic diagram of a frontal sectional three-dimensional structure of a filter barrel according to an embodiment of the present application;

[0034] Fig.14 is a schematic diagram of the three-dimensional structure of a separation mechanism and a driving mechanism according to an embodiment of the present application;

[0035] Fig.15 It is a schematic diagram of the three-dimensional structure of the driving mechanism according to an embodiment of the present application.

[0036] Icons: 1. Installation mechanism; 101. Base; 102. Fixing seat; 103. Support seat; 104. Filter barrel; 105. Inlet pipe; 106. Intermediate pipe; 107. First liquid discharge valve pipe; 108. Two-way connecting pipe; 109. Control valve; 110. Assembly hole; 2. Separation mechanism; 201. Separation barrel; 202. Baffle; 203. Assembly seat; 204. Transmission rod; 205. Flow control plate; 206. Liquid passing plate; 207. First transmission wheel; 208. First transmission toothed belt; 209. Exhaust valve pipe; 210. Second liquid discharge valve pipe; 3. Liquid collection adjustment mechanism; 301. Adjustment box; 302. Positioning round rod; 303. Connecting plate; 304. Adjustment hole; 3 05, adjustment frame; 306, sealing arc plate; 307, limiting groove; 308, liquid sampling plate; 4, filtering mechanism; 401, connecting frame; 402, connecting slide rod; 403, filtering frame; 404, filtering net; 405, guiding thin rod; 5, driving mechanism; 501, servo motor; 502, first long rotating rod; 503, second long rotating rod; 504, gear cylinder; 505, short rotating rod; 506, second transmission wheel; 507, second transmission toothed belt; 508, driving gear; 509, driven gear; 510, third transmission wheel; 511, fourth transmission wheel; 512, third transmission toothed belt; 513, limiting frame; 514, tooth plate; 515, transmission frame; 516, guiding thick rod. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0038] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] A wellhead natural gas gas-liquid separation device according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0046] like Figure 1-Figure 15 As shown, a wellhead natural gas gas-liquid separation device according to an embodiment of the present application includes: an installation mechanism 1, a separation mechanism 2, a liquid production adjustment mechanism 3, a filtering mechanism 4 and a driving mechanism 5.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, the mounting mechanism 1, the separation mechanism 2, the separation mechanism 2 is located in the middle of the upper end of the mounting mechanism 1, the liquid sampling regulating mechanism 3, the liquid sampling regulating mechanism 3 is located at the upper end of the separation mechanism 2, the filtering mechanism 4, the filtering mechanism 4 is located inside the upper end of the mounting mechanism 1, the filtering mechanism 4 is located at the upper ends of the separation mechanism 2 and the liquid sampling regulating mechanism 3, the driving mechanism 5, the driving mechanism 5 is located on one side of the upper end of the mounting mechanism 1, the driving mechanism 5 drives the separation mechanism 2 to rotate, controls the flow rate of gas and liquid in the process of separating gas and liquid by the separation mechanism 2, and at the same time drives the contact area of ​​the liquid sampling regulating mechanism 3 with the gas and liquid, and at the same time drives the upper and lower position adjustment of the filtering mechanism 4 to improve the gas-liquid separation efficiency.

[0048] When in use, the staff first obtains the gas and liquid content in the gas-liquid, and then controls the rotation position of the separation mechanism 2 by starting the driving mechanism 5. If the liquid content in the gas-liquid mixture is high, the separation mechanism 2 will rotate counterclockwise and drive the liquid sampling regulating mechanism 3 to move toward the inside of the separation mechanism 2, thereby increasing the contact area between the liquid sampling regulating mechanism 3 and the gas-liquid mixture and improving the separation accuracy. At the same time, when the liquid sampling regulating mechanism 3 moves downward, it will drive the filtering mechanism 4 to move downward inside the filtering barrel 104, thereby increasing the distance between the gas-liquid mixture and the filtering mechanism 4, making the gas-liquid separation more complete and improving the separation efficiency.

[0049] like Figure 4 As shown, the mounting mechanism 1 includes a base 101 and a filter barrel 104, the front end and the rear end of the upper surface of the base 101 are fixedly connected with a fixing seat 102, the middle part of the upper surface of the base 101 is fixedly connected with a support seat 103, the filter barrel 104 is fixedly connected to the upper end of the support seat 103, a control valve 109 is provided at the front end of the upper part of the two-way connecting pipe 108, the middle part of the upper end of the filter barrel 104 is fixedly connected with an air intake pipe 105, the lower part of the rear end of the filter barrel 104 is through-connected with a first liquid discharge valve pipe 107, and the rear end of the first liquid discharge valve pipe 107 extends to the outside of the support seat 103.

[0050] like Figure 5 , Figure 6 , Figure 7 and Figure 810. The separation mechanism 2 includes a separation cylinder 201, a flow control plate 205 and a liquid-passing plate 206. The two separation cylinders 201 are both located at the upper end of the base 101. The outer walls of the front and rear ends of the separation cylinder 201 are fixedly connected to the inner wall of the fixed seat 102. The middle part of the front end of the upper surface of the base 101 is fixedly connected to the assembly seat 203. The middle part of the separation cylinder 201 is rotatably connected to the transmission rod 204. The front ends of the transmission rods 204 are rotatably connected to the assembly seat 203. Multiple flow control plates 205 are fixedly connected to the outer walls of the transmission rods 204. Multiple liquid-passing plates 206 are fixedly connected to the inner wall of the separation cylinder 201. Multiple flow control plates 205 are tightly connected to multiple liquid-passing plates 206. The outer wall of the rear end of the transmission rod 204 is fixedly connected with a first transmission wheel 207, and the outer wall of the first transmission wheel 207 is sleeved with a first transmission toothed belt 208. The lower end of the filter barrel 104 is connected with a plurality of intermediate tubes 106, and the upper part of the front end of the filter barrel 104 is connected with a two-way connecting tube 108, and the lower ends of the intermediate tubes 106 are connected with the middle part of the separation barrel 201, and the lower ends of the two-way connecting tubes 108 are connected with the upper ends of the middle part of the separation barrel 201, respectively. A baffle 202 is fixedly connected to the middle part of the inner wall of the separation barrel 201, and the upper parts of the front and rear ends of the separation barrel 201 are connected with an exhaust valve pipe 209, and the lower parts of the front and rear ends of the separation barrel 201 are connected with a A second liquid discharge valve pipe 210 is connected. Specifically, during the process of gas-liquid separation of natural gas at the wellhead, the staff obtains the content of gas and liquid in the gas-liquid, and then drives the transmission rod 204 to drive the flow control plate 205 to rotate. If the content of liquid in the gas-liquid is high, the flow control plate 205 is rotated clockwise. At this time, the liquid through hole at the lower end of the liquid through plate 206 is opened and the flow rate is increased, and the air vent at the upper end of the liquid through plate 206 is slowly blocked by the flow control plate 205 and the flow rate is reduced, thereby increasing the flow area of ​​the liquid and reducing the problem of liquid accumulation in the separation device. At the same time, reducing the air vent can reduce the gas flow rate, so that its drag on the liquid is reduced, and the liquid is easier to move under the action of gravity, etc. The lower separation sedimentation is used to improve the efficiency and quality of gas-liquid separation. On the contrary, when the liquid content in the gas-liquid mixture is low and the gas content is high, the flow control plate 205 will rotate counterclockwise and make corresponding position adjustments, so that the liquid holes at the lower end of the liquid plate 206 are slowly blocked by the flow control plate 205 and the flow rate is reduced, while the air holes at the upper end of the liquid plate 206 are opened and the flow rate is increased. At this time, the air holes are opened and the flow rate is increased, providing a larger circulation channel for the gas, thereby improving the gas transmission efficiency. At the same time, the liquid holes are slowly blocked and the flow rate is reduced, and the circulation of the liquid is subject to a certain restriction, thereby reducing the possibility of the liquid being carried by the high-speed flowing gas, thereby improving the quality of gas-liquid separation.

[0051] like Fig. 9 , Fig.10 and Fig.11As shown, the liquid collection adjustment mechanism 3 includes an adjustment box 301 and an adjustment frame 305. The two adjustment boxes 301 are both located at the upper end of the transmission rod 204. The two adjustment boxes 301 are respectively fixedly connected to the middle of the upper end of the separation cylinder 201. The side of the adjustment box 301 away from the base 101 and the filter barrel 104 is respectively fixedly connected with three groups of positioning round rods 302. The outer walls of the positioning round rods 302 are slidably connected with connecting plates 303. The inner bottom surface of the adjustment box 301 is provided with a plurality of adjustment holes 304. 4. Multiple adjustment frames 305 are fixedly connected to the inner bottom surface of the adjustment box 301. The lower ends of the adjustment holes 304 are fixedly connected to the sealing arc plates 306. The inner walls on both sides of the adjustment frames 305 are provided with multiple limit grooves 307. The insides of the limit grooves 307 are slidably connected to the liquid sampling plates 308. The lower ends of the liquid sampling plates 308 penetrate the sealing arc plates 306 and extend to the inside of the separation cylinder 201. Specifically, in the process of gas-liquid separation of wellhead natural gas, the staff obtains gas and liquid The content of gas and liquid in the gas-liquid mixture. If the content of liquid in the gas-liquid mixture is high, the flow control plate 205 rotates clockwise, and the connecting plate 303 moves downward during the clockwise rotation of the flow control plate 205. At this time, the connecting plate 303 drives the liquid sampling plate 308 to move downward inside the adjustment frame 305. At this time, the area of ​​the liquid sampling plate 308 inside the separation cylinder 201 will increase, and then the contact area of ​​the liquid sampling plate 308 with the liquid in the gas-liquid mixture will increase. When the gas-liquid mixture flows in the separation cylinder 201, the larger area of ​​the liquid sampling plate 308 can intercept more liquid, so that it adheres to the surface of the liquid sampling plate 308 and converges into a flow, thereby improving the efficiency of liquid collection. On the contrary, in the gas-liquid mixture, when the gas content is high and the liquid content is low, the flow control plate 205 rotates counterclockwise and adjusts to a position suitable for the high gas content working condition. In this process, the connecting plate 303 moves upward driven by the flow control plate 205. At this time, the connecting plate 303 will drive the liquid sampling plate 308 to move upward inside the regulating frame 305, so that the area of ​​the liquid sampling plate 308 inside the separation cylinder 201 is reduced. Further, reducing the area of ​​the liquid sampling plate 308 can reduce its resistance to the flow of gas, and the gas can flow more smoothly in the separation cylinder 201, reducing pressure loss and improving the separation and transportation efficiency of the gas.

[0052] like Fig.12 and Fig.13The filter mechanism 4 includes a connecting frame 401, a connecting slide rod 402 and a filter frame 403. The two connecting frames 401 are respectively located at the upper ends of the base 101 and the transmission rod 204. The two connecting frames 401 are respectively fixedly connected to the middle of the upper surface of the connecting plate 303. The upper ends of the two connecting slide rods 402 are fixedly connected to the upper ends of the connecting frames 401. The connecting slide rods 402 are slidably connected inside the filter barrel 104. The filter frame 403 is fixedly connected to the lower end of the connecting slide rod 402. The inner wall of the filter frame 403 is fixedly connected with a filter screen 404. The filter frame 403 is slidably connected inside the filter barrel 104. The front and rear ends of the bottom surface of the barrel 104 are fixedly connected with a guide rod 405, and the filter frame 403 is slidably connected to the outer wall of the guide rod 405. Specifically, in the process of gas-liquid separation of wellhead natural gas, the staff obtains the content of gas and liquid in the gas-liquid. If the content of liquid in the gas-liquid is high, the flow control plate 205 is rotated clockwise, and the connecting plate 303 moves downward during the clockwise rotation of the flow control plate 205. At this time, the connecting plate 303 drives the connecting frame 401 to move downward. At this time, the filter frame 403 and the filter screen 404 move downward inside the filter barrel 104 at the same time. When the flow control plate 205 stops rotating, the filter frame 403 stops moving downward, and the distance between the air inlet pipe 105 and the filter screen 404 becomes larger, so that the larger distance provides a longer separation path and more time for gas-liquid separation for the gas-liquid mixture. In this process, part of the liquid will settle more easily inside the filter barrel 104 due to gravity, and part of the gas will also flow upward and enter the separation cylinder 201 through the two-way connecting pipe 108. This can make the gas-liquid separation more complete and improve the separation efficiency. On the contrary, when the gas content in the gas-liquid mixture is high, the flow control plate 205 stops rotating. 05 will rotate counterclockwise, during this process, the connecting plate 303 will move upward while the flow control plate 205 rotates clockwise. At this time, the connecting plate 303 will drive the connecting frame 401 to move upward, and the filter frame 403 and the filter screen 404 will move upward inside the filter barrel 104 at the same time. When the flow control plate 205 stops rotating, the filter frame 403 also stops moving upward. At this time, the distance between the air inlet pipe 105 and the filter screen 404 will become smaller, and the gas can contact the filter screen 404 faster after entering the filter barrel 104, which helps to increase the gas filtration speed, improve the separation efficiency and the quality of the finished product.

[0053] like Fig.14 and Fig.15As shown, the driving mechanism 5 includes a servo motor 501 and a tooth plate 514, the servo motor 501 is fixedly connected to one side of the front end of the upper surface of the base 101, the output end of the servo motor 501 is fixedly connected to the first long rotating rod 502, the second long rotating rod 503 is rotatably connected to the other side of the upper surface of the base 101, the outer walls of the first long rotating rod 502 and the second long rotating rod 503 are respectively fixedly connected to two gear cylinders 504, the other side of the front end of the upper surface of the base 101 is rotatably connected to the short rotating rod 505, the outer walls of the front ends of the first long rotating rod 502 and the short rotating rod 505 are fixedly connected to the second transmission wheel 506, the outer wall of the second transmission wheel 506 is sleeved with a second transmission toothed belt 507, the outer wall of the rear end of the short rotating rod 505 is fixedly connected to the driving gear 508, and the second long rotating rod 502 is fixedly connected to the outer wall of the rear end of the short rotating rod 505. The outer wall of the front end of the rotating rod 503 is fixedly connected to the driven gear 509, and the driving gear 508 is meshed with the driven gear 509. The outer wall of the rear end of the first long rotating rod 502 is fixedly connected to the third transmission wheel 510, and the outer wall of the rear end of the one side transmission rod 204 is fixedly connected to the fourth transmission wheel 511. The outer walls of the third transmission wheel 510 and the fourth transmission wheel 511 are both sleeved with a third transmission toothed belt 512. Two assembly holes 110 are respectively provided on both sides of the upper surface of the base 101. The interior of the assembly holes 110 is fixedly connected to the limiting frame 513, and the tooth plate 514 is slidably connected to the inner wall of the limiting frame 513. The end of the tooth plate 514 close to the middle of the base 101 is fixedly connected to the transmission frame 515, and the upper end of the transmission frame 515 is connected to the upper end of the connecting plate 303. The surface is fixedly connected, and a plurality of thick guide rods 516 are fixedly connected to both sides of the front end and the rear end of the upper surface of the base 101, and the transmission frame 515 is slidably connected to the outer wall of the thick guide rod 516. Specifically, in the process of gas-liquid separation of natural gas at the wellhead, the staff obtains the content of gas and liquid in the gas-liquid. If the content of liquid in the gas-liquid is high, the first long rotating rod 502 can be driven by the third transmission wheel 510 to rotate by starting the servo motor 501. At this time, under the action of the fourth transmission wheel 511, the third transmission toothed belt 512, the first transmission wheel 207 and the first transmission toothed belt 208, the transmission rod 204 starts to drive the flow control plate 205 to rotate clockwise, and at the same time, the gear cylinder 504 and the tooth plate 514 are meshed with each other to move the tooth plate 514 downward. At this time, the tooth plate 514 will drive the transmission frame 515 and the connecting plate 303 to move downward, thereby simultaneously adjusting the positions of the flow control plate 205, the liquid sampling plate 308 and the filter frame 403, effectively adapting to the separation work of the device for the gas-liquid mixture, wherein, by starting the servo motor 501 clockwise or counterclockwise, firstly, it can meet the gas-liquid separation work with high liquid content and high gas content, and can make targeted adjustments according to different gas-liquid ratios to make the separation process more efficient; secondly, the positions of the flow control plate 205, the liquid sampling plate 308 and the filter screen 404 can be adjusted synchronously, so that the flow process and separation process of the gas-liquid mixture in the separation device are correspondingly optimized, thereby improving the separation quality of mixtures with different gas-liquid ratios;Third, the positions of the flow control plate 205, the liquid sampling plate 308 and the filter screen 404 are changed correspondingly by a single servo motor 501, which can reduce the use of the driving mechanism 5 and optimize the circuit; Fourth, the position of the flow control plate 205 can be adjusted according to the mixture of different gas-liquid ratios, which can reduce the problem of liquid accumulation in the separation device. At the same time, reducing the vent hole can reduce the gas flow, so that the drag force on the liquid is reduced, and the liquid is easier to separate and settle under the action of gravity, etc., thereby improving the efficiency and quality of gas-liquid separation. ;

[0054] Specifically, the working principle of the wellhead natural gas gas-liquid separation device is as follows: Specifically, in the process of gas-liquid separation of wellhead natural gas, the staff obtains the gas and liquid content in the gas-liquid. If the liquid content in the gas-liquid is high, the first long rotating rod 502 can be driven to rotate the third transmission wheel 510 by starting the servo motor 501. At this time, under the action of the fourth transmission wheel 511, the third transmission toothed belt 512, the first transmission wheel 207 and the first transmission toothed belt 208, the transmission rod 204 starts to drive the flow control plate 205 to rotate clockwise. At this time, the liquid flow plate 206 at the lower end is The holes are opened and the flow rate is increased, and the air holes at the upper end of the liquid-passing plate 206 are slowly blocked by the flow control plate 205 and the flow rate is reduced, thereby increasing the flow area of ​​the liquid and reducing the problem of liquid accumulation in the separation device. At the same time, reducing the air holes can reduce the gas flow rate, so that its drag on the liquid is reduced, and the liquid is easier to separate and settle under the action of gravity, etc., thereby improving the efficiency and quality of gas-liquid separation. At the same time, the connecting plate 303 will move downward during the clockwise rotation of the flow control plate 205. At this time, the connecting plate 303 will drive the liquid sampling plate 308 to move downward inside the adjustment frame 305. The area of ​​the liquid sampling plate 308 inside the separation cylinder 201 will increase, and then the contact area of ​​the liquid sampling plate 308 with the liquid in the gas-liquid mixture will increase. When the gas-liquid mixture flows in the separation cylinder 201, the liquid sampling plate 308 with a larger area can intercept more liquid, causing it to adhere to the surface of the liquid sampling plate 308 and converge into a flow, thereby improving the efficiency of liquid collection. At the same time, the connecting plate 303 will move downward during the clockwise rotation of the flow control plate 205. At this time, the connecting plate 303 will drive the connecting frame 401 to move downward. At this time, the filter frame 403 and the filter screen 404 will simultaneously move in the flow control plate 205. The interior of the filter barrel 104 moves downward, and when the flow control plate 205 stops rotating, the filter frame 403 stops moving downward. At this time, the distance between the air inlet pipe 105 and the filter screen 404 becomes larger, so that the larger distance provides a longer separation path for the gas-liquid mixture and more time for gas-liquid separation. In this process, part of the liquid will be more easily settled in the interior of the filter barrel 104 due to gravity, and part of the gas will also easily flow upward and then enter the interior of the separation cylinder 201 through the two-way connecting pipe 108, which can make the gas-liquid separation more complete and improve the separation efficiency.

[0055] It should be noted that the model and specifications of the servo motor 501 need to be selected and determined based on the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in this field, so it will not be repeated in detail.

[0056] The power supply and principle of the servo motor 501 are clear to those skilled in the art and will not be described in detail here.

[0057] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0058] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wellhead natural gas gas-liquid separation device, characterized in that: include: A mounting mechanism (1), the mounting mechanism (1) comprising a base (101) and a filter barrel (104), the front end and the rear end of the upper surface of the base (101) being fixedly connected to a fixing seat (102), the middle portion of the upper surface of the base (101) being fixedly connected to a support seat (103), and the filter barrel (104) being fixedly connected to the upper end of the support seat (103); A separation mechanism (2), the separation mechanism (2) being located in the middle of the upper end of the mounting mechanism (1), the separation mechanism (2) comprising a separation cylinder (201), a flow control plate (205) and a liquid passage plate (206), the two separation cylinders (201) being located at the upper end of the base (101), the outer walls of the front and rear ends of the separation cylinders (201) being fixedly connected to the inner wall of the fixed seat (102), the middle of the front end of the upper surface of the base (101) being fixedly connected to an assembly seat (203), the middle of the separation cylinder (201) being rotatably connected to a transmission rod (204), the front ends of the transmission rods (204) being rotatably connected to the assembly seat (203), and the plurality of flow control plates (205) being fixedly connected to the outer walls of the transmission rods (204). The filter barrel (104) is provided with a plurality of intermediate tubes (106) connected to the inner wall of the separation barrel (201); the plurality of flow control plates (205) are tightly fitted with the plurality of liquid-passing plates (206); the outer wall of the rear end of the transmission rod (204) is fixedly connected with a first transmission wheel (207); the outer wall of the first transmission wheel (207) is sleeved with a first transmission toothed belt (208); the lower end of the filter barrel (104) is connected to a plurality of intermediate tubes (106); the upper part of the front end of the filter barrel (104) is connected to a two-way connecting tube (108); the lower ends of the intermediate tubes (106) are connected to the middle part of the separation barrel (201); and the lower ends of the two-way connecting tubes (108) are respectively connected to the upper ends of the middle part of the separation barrel (201); A liquid collection regulating mechanism (3), the liquid collection regulating mechanism (3) being located at the upper end of the separation mechanism (2), the liquid collection regulating mechanism (3) comprising a regulating box (301) and a regulating frame (305), the two regulating boxes (301) being respectively fixedly connected to the middle part of the upper end of the separation barrel (201), the side of the regulating box (301) away from the base (101) and the filter barrel (104) being respectively fixedly connected to three groups of positioning round rods (302), the outer walls of the positioning round rods (302) being slidably connected to connecting plates (303), the regulating boxes (301) and the filter barrel (104) being respectively fixedly connected to the sides of the regulating boxes (301) away from the base (101) and the filter barrel (104), the outer walls of the positioning round rods (302) being respectively slidably connected to connecting plates (303), the regulating boxes (301) and the filter barrel (104) being respectively fixedly connected to the three groups of positioning round rods (302 ... The inner bottom surface of the box (301) is provided with a plurality of adjustment holes (304), the plurality of adjustment frames (305) are fixedly connected to the inner bottom surface of the adjustment box (301), the lower ends of the adjustment holes (304) are fixedly connected to sealing arc plates (306), the inner walls on both sides of the adjustment frames (305) are provided with a plurality of limiting grooves (307), the interiors of the limiting grooves (307) are slidably connected to liquid sampling plates (308), and the lower ends of the liquid sampling plates (308) penetrate the sealing arc plates (306) and extend to the interior of the separation cylinder (201); A filtering mechanism (4), the filtering mechanism (4) being located inside the upper end of the mounting mechanism (1), the filtering mechanism (4) being located at the upper ends of the separation mechanism (2) and the liquid collection regulating mechanism (3), the filtering mechanism (4) comprising a connecting frame (401), a connecting slide rod (402) and a filtering frame (403), the two connecting frames (401) being located at the upper ends of the base (101) and the transmission rod (204), respectively, the two connecting frames (401) being fixedly connected to the base (101) and the transmission rod (204), respectively. In the middle of the upper surface of the connecting plate (303), the upper ends of the two connecting slide bars (402) are fixedly connected to the upper end of the connecting frame (401), the connecting slide bars (402) are slidably connected inside the filter barrel (104), the filter frame (403) is fixedly connected to the lower end of the connecting slide bars (402), the inner wall of the filter frame (403) is fixedly connected with a filter net (404), and the filter frame (403) is slidably connected inside the filter barrel (104); A driving mechanism (5), the driving mechanism (5) being located on one side of the upper end of the mounting mechanism (1), the driving mechanism (5) driving the separation mechanism (2) to rotate, controlling the flow of gas and liquid during the gas-liquid separation process of the separation mechanism (2), and driving the area of ​​contact between the liquid sampling adjustment mechanism (3) and the gas and liquid, and driving the filter mechanism (4) to adjust its upper and lower positions.

2. A wellhead natural gas gas-liquid separation device according to claim 1, characterized in that: An air inlet pipe (105) is fixedly connected to the middle of the upper end of the filter barrel (104), and a first liquid discharge valve pipe (107) is connected to the lower part of the rear end of the filter barrel (104), and the rear end of the first liquid discharge valve pipe (107) extends to the outside of the support seat (103).

3. A wellhead natural gas gas-liquid separation device according to claim 1, characterized in that: A control valve (109) is provided at the front end of the upper portion of the two-way connecting pipe (108).

4. A wellhead natural gas gas-liquid separation device according to claim 1, characterized in that: A baffle (202) is fixedly connected to the middle of the inner wall of the separation cylinder (201), an exhaust valve pipe (209) is connected through the upper parts of the front and rear ends of the separation cylinder (201), and a second liquid discharge valve pipe (210) is connected through the lower parts of the front and rear ends of the separation cylinder (201).

5. A wellhead natural gas gas-liquid separation device according to claim 1, characterized in that: The front end and the rear end of the inner bottom surface of the filter barrel (104) are both fixedly connected to a thin guide rod (405), and the filter frame (403) is slidably connected to the outer wall of the thin guide rod (405).

6. A wellhead natural gas gas-liquid separation device according to claim 1, characterized in that: The driving mechanism (5) comprises a servo motor (501), a second long rotating rod (503) and a tooth plate (514); the servo motor (501) is fixedly connected to one side of the front end of the upper surface of the base (101); the output end of the servo motor (501) is fixedly connected to the first long rotating rod (502); the second long rotating rod (503) is rotatably connected to the other side of the upper surface of the base (101); the outer walls of the first long rotating rod (502) and the second long rotating rod (503) are respectively fixedly connected to two tooth cylinders (504); the other side of the front end of the upper surface of the base (101) is rotatably connected to a short rotating rod (505); the outer walls of the front ends of the first long rotating rod (502) and the short rotating rod (505) are A second transmission wheel (506) is fixedly connected, and the outer wall of the second transmission wheel (506) is sleeved with a second transmission toothed belt (507); the outer wall of the rear end of the short rotating rod (505) is fixedly connected with a driving gear (508); the outer wall of the front end of the second long rotating rod (503) is fixedly connected with a driven gear (509); the driving gear (508) and the driven gear (509) are meshed with each other; the outer wall of the rear end of the first long rotating rod (502) is fixedly connected with a third transmission wheel (510); the outer wall of the rear end of the transmission rod (204) on one side is fixedly connected with a fourth transmission wheel (511); and the outer walls of the third transmission wheel (510) and the fourth transmission wheel (511) are both sleeved with a third transmission toothed belt (512); Two assembly holes (110) are respectively provided on both sides of the upper surface of the base (101); the interiors of the assembly holes (110) are fixedly connected to a limiting frame (513); the tooth plates (514) are slidably connected to the inner wall of the limiting frame (513); one end of the tooth plates (514) close to the middle of the base (101) is fixedly connected to a transmission frame (515); and the upper end of the transmission frame (515) is fixedly connected to the upper surface of the connecting plate (303).

7. A wellhead natural gas gas-liquid separation device according to claim 6, characterized in that: A plurality of thick guide rods (516) are respectively fixedly connected to both sides of the front end and the rear end of the upper surface of the base (101), and the transmission frames (515) are all slidably connected to the outer walls of the thick guide rods (516).

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